diff options
| author | José Roberto de Souza <jose.souza@intel.com> | 2023-04-26 09:20:05 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-12-19 18:31:42 -0500 |
| commit | a121594006813eff7864a63e14573f3f5523e29c (patch) | |
| tree | c825517da487c59c00648ca0fc08d01c5bc6b829 /drivers/gpu/drm/xe/xe_ttm_sys_mgr.c | |
| parent | fdb3abcebba5d4a647739bb79a3818bd81956f64 (diff) | |
drm/xe: Limit the system memory size to half of the system memory
ttm_global_init() imposes this limitation.
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_ttm_sys_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_ttm_sys_mgr.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xe/xe_ttm_sys_mgr.c b/drivers/gpu/drm/xe/xe_ttm_sys_mgr.c index 5b0674bbb8ed..3e1fa0c832ca 100644 --- a/drivers/gpu/drm/xe/xe_ttm_sys_mgr.c +++ b/drivers/gpu/drm/xe/xe_ttm_sys_mgr.c @@ -105,7 +105,10 @@ int xe_ttm_sys_mgr_init(struct xe_device *xe) u64 gtt_size; si_meminfo(&si); - gtt_size = (u64)si.totalram * si.mem_unit * 3/4; + gtt_size = (u64)si.totalram * si.mem_unit; + /* TTM limits allocation of all TTM devices by 50% of system memory */ + gtt_size /= 2; + man->use_tt = true; man->func = &xe_ttm_sys_mgr_func; ttm_resource_manager_init(man, &xe->ttm, gtt_size >> PAGE_SHIFT); |